US7574094B2 - Fiber drop receiving device - Google Patents
Fiber drop receiving device Download PDFInfo
- Publication number
- US7574094B2 US7574094B2 US12/186,869 US18686908A US7574094B2 US 7574094 B2 US7574094 B2 US 7574094B2 US 18686908 A US18686908 A US 18686908A US 7574094 B2 US7574094 B2 US 7574094B2
- Authority
- US
- United States
- Prior art keywords
- drop
- drop receiving
- receiving device
- receiving cylinder
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000835 fiber Substances 0.000 title abstract description 33
- 239000013307 optical fiber Substances 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 31
- 238000009434 installation Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4485—Installing in protective tubing by fluid drag during manufacturing
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
- G02B6/52—Underground or underwater installation; Installation through tubing, conduits or ducts using fluid, e.g. air
Definitions
- signals are transmitted along lengths of optical fiber by light waves generated from a source thereof, such as a laser.
- Optical fibers are typically fabricated of glass materials and are very delicate or fragile.
- An optical fiber may be on the order of 125 microns in diameter or smaller.
- lengths of fiber optic cables or “drops” must be installed through ducts, conduits, or the like.
- a fiber drop must be placed at each individual unit in a multi-unit dwelling. This is typically accomplished by placing a conduit or duct from a central service provision location to a predetermined location in each individual unit that happens to be served by that location.
- the duct may be placed at either the time of the initial construction or at the time that the service order is placed.
- a fiber optic drop is placed within the duct from the terminal to the particular unit. This is typically accomplished by pulling the drop through the duct using a nylon string. Unfortunately, this operation typically requires access to the customer premises at the time of installation and may require two or more individuals to perform the operation.
- FIG. 1 is a block diagram illustrating an exemplary application environment in which the devices and methods described herein may be implemented;
- FIG. 2 is a schematic diagram of a front view of the drop receiving device of FIG. 1 ;
- FIGS. 3A and 3B are exploded and assembled schematic views of the drop receiving device of FIG. 1 taken along the line “A-A”;
- FIG. 4A is a schematic diagram of the back plate of FIG. 3A ;
- FIG. 4B is a schematic diagram of the back plate of FIG. 4A taken along the line “B-B”;
- FIG. 4C is a schematic diagram of the back plate of FIG. 4B taken along the line “C-C”;
- FIG. 5A is a schematic diagram of the shield of FIG. 3A ;
- FIG. 5B is a schematic diagram of the shield of FIG. 5A taken along the line “D-D”;
- FIG. 6A is a schematic diagram of the drop receiving cylinder of FIG. 3A ;
- FIG. 6B is a schematic diagram of the drop receiving cylinder of FIG. 6A taken along the line “E-E”;
- FIG. 7A is a schematic diagram of the cylinder cover of FIG. 3A ;
- FIG. 7B is a schematic diagram of the cylinder cover of FIG. 7A taken along the line “F-F”;
- FIG. 8A is a schematic diagram of the outer housing of FIG. 3A ;
- FIG. 8B is a schematic diagram of the outer housing of FIG. 8A taken along the line “G-G”;
- FIG. 8C is a schematic diagram of the outer housing of FIG. 8B taken along the line “H-H”;
- FIG. 9 is a flow diagram illustrating an exemplary process for installing a fiber drop in the application environment of FIG. 1 using the drop receiving device of FIG. 2 .
- a device may be provided for receiving a length of optical fiber from the conduit by using a rotating drop receiving cylinder, to actively receive the length of fiber and facilitate efficient winding of the length of fiber.
- FIG. 1 is a block diagram illustrating an exemplary application environment 100 in which devices and methods described herein may be implemented.
- application environment 100 may include a multi-unit building 110 , units 115 - 1 to 115 - 6 , drop receiving devices 120 - 1 to 120 - 6 , conduits 125 - 1 to 125 - 6 , and a service provision location 130 .
- Multi-unit building 110 may include a physical structure, such as an apartment building, having a number of individual units 115 - 1 through 115 - 6 (collectively “units 115 ” or individually “unit 115 ”) provided therein. As described above, each unit 115 may be provided with a corresponding drop receiving device 120 - 1 to 120 - 6 (collectively “drop receiving devices 120 ” or individually “drop receiving device 120 ”) configured to receiving a fiber drop. For example, a utility room or utility closet in each unit 115 may be provided with drop receiving device 120 .
- drop receiving device 120 may be provided or installed during initial construction of multi-unit building 110 or may be provided during provision of fiber-based services to a particular unit 115 in multi-unit building 110 . As will be described in additional detail below with respect to FIGS. 2-9 , drop receiving device 120 may be configured to receive a fiber drop without requiring access to unit 115 and without requiring additional installation personnel.
- Each drop receiving device 120 may be serviced by a corresponding conduit 125 - 1 to 125 - 6 (collectively “conduits 125 ” or individually “conduit 125 ”) for facilitating deliver of a fiber drop from service provision location 130 to each unit 115 .
- conduits 125 may extend hundreds of feet in length and may include multiple bends.
- service provision location 130 may be provided in a centralized location relative to units 115 .
- service provision location 130 may be provided at a common building access point for building service providers, such as a basement or utility room(s).
- multiple service provision locations 130 may be provided for selected ones of units 115 , such as a first service provision location 130 for a first group of units 115 and a second service provision location 130 for a second group of units 115 .
- a single multi-unit building 110 , six units 115 , six drop receiving devices 120 , six conduits 125 , and a single service provision location 130 have been illustrated in FIG. 1 for simplicity.
- a single floor of a building may include multiple units (e.g. cubicles), where each unit may include a conduit and a drop receiving device, and the service provision location may be located on the single floor.
- FIG. 2 is a schematic view illustrating an exemplary implementation of a drop receiving device 200 for use with application environment 100 of FIG. 1 .
- drop receiving device 200 may facilitate efficient installation of a fiber drop 202 by receiving fiber drop 202 and flow of air via an installation conduit or duct 125 .
- conduit 125 may include a microduct 204 having an outside diameter ranging from approximately 8.5 mm to about 12.7 mm.
- drop receiving device 200 may include an outer housing 206 , a duct entry port 208 , a duct seal(s) 210 , a fiber/air flow receiving channel 212 , a drop receiving cylinder 214 , and a number of air escape ports 216 - 1 to 216 - 4 (collectively, “air escape ports 216 ” and individually, “air escape port 216 ”). Additional components and details relating to drop receiving device 200 are set forth in additional detail below. Consistent with embodiments described herein, microduct 204 may be configured to receive fiber drop 202 and a source of pressurized air from, for example, service provision location 130 . Pressurized air may be used to assist in insertion of the fiber drop 202 by reducing friction in microduct 204 .
- outer housing 206 of drop receiving device 200 may be formed in a substantially rectangular or box-like configuration.
- drop receiving device 200 may include a two-part housing assembly that includes outer housing 206 and a back plate assembly (shown at element 310 in FIGS. 3A , 3 B, and 4 A- 4 C).
- Outer housing 206 may be releasably connected to back plate assembly 310 by any of a variety of fastening mechanisms, such as screws, clips, bolts, etc.
- Outer housing 206 as well as back plate assembly 310 may be formed of any suitable material and in any suitable manner, such as by injection molded plastic, welded aluminum or steel sheets, etc. Removing outer housing 206 from back plate assembly 310 may facilitate opening of drop receiving device 200 and removal of drop 202 from drop receiving cylinder 214 .
- Duct entry port 208 may engagably receive microduct 204 and may provide access to fiber/air flow receiving channel 212 .
- duct entry port 208 may have a substantially cylindrical configuration designed to receive a substantially cylindrical outer surface of microduct 204 .
- Duct entry port 208 may include one or more duct seals 210 to reduce the amount of air that may escape from duct entry port 208 upon installation of drop 202 .
- duct seals 210 may include a number of “O”-rings formed of a resilient material (e.g., rubber or plastic). Alternatively, an entire inner surface of duct entry port 208 may be configured as a resilient, sealing material.
- Fiber/air flow receiving channel 212 may be configured to receive fiber drop 202 and a flow of pressurized air from microduct 204 .
- pressurized air may be provided within conduit to reduce an effect of friction during the drop installation process.
- the air used to assist during movement of drop 202 through microduct 204 is left to escape from an end of microduct 204 .
- the flow of pressurized air may be used to drive a rotation of drop receiving cylinder 214 , thereby assisting in reception and storage of fiber drop 202 upon exit from microduct 204 .
- fiber/air flow receiving channel 212 may include an outlet 218 that enables the pressurized air and drop 202 to enter drop receiving cylinder 214 .
- drop receiving cylinder 214 may be rotatably mounted in outer housing 206 and may include a substantially cylindrical cross-section and escape ports 216 .
- the air entering cylinder 214 may be directed out of escape ports 216 extending tangentially from the periphery of drop receiving cylinder 214 , thereby causing drop receiving cylinder 214 to rotate in a direction opposite to the escaping air flow.
- escape ports 216 are directed in a clockwise direction, drop receiving cylinder 214 will rotate in a counter-clockwise direction upon application of pressurized air from fiber/air flow receiving channel 212 .
- Drop receiving cylinder 214 may be sized to accept a predetermined length of optical fiber sufficient to provide service to unit 115 .
- drop receiving device 200 has been illustrated as including a variety of components and/or structures, it should be understood that these components and structures are not limiting and that any suitable combination of components and/or structures may be used.
- FIG. 3A is an exploded schematic diagram illustrating an exemplary implementation of a drop receiving device 200 taken along the line “A-A” of FIG. 1 .
- drop receiving device 200 may be formed of outer housing 206 , a cup 302 , a pin 304 , a cylinder cover 306 , a shield or fence 308 , drop receiving cylinder 214 , and back plate assembly 310 .
- outer housing 206 may have a substantially box-shaped configuration including walls 312 and top 314 . As shown in additional detail below with respect to FIGS. 8B and 8C , walls 312 of outer housing 206 may include openings 316 configured to receive clip elements 318 of back plate assembly 310 . Outer housing 206 may include a pin receiving element 320 substantially centered within top 314 of outer housing and configured to receive one end of pin 304 .
- Cup 302 may have a substantially cylindrical configuration including a wall 322 and a top 324 .
- Cup 302 may include a pin hole 326 configured to receive pin 304 , thereby centering cup 302 relative to outer housing 206 .
- Cylinder cover 306 may include a substantially disc-shaped outer section 328 integrally formed with a cup-shaped inner section 330 .
- an outer surface 332 of inner section 330 may be configured to lie adjacent to outlet 218 of fiber/air flow receiving channel 212 .
- cup-shaped inner section 330 may include a pin hole 334 configured to receive pin 304 , thereby cylinder cover 306 relative to outer housing 206 .
- outer section 328 may include a lip 336 configured to engage an outer surface 338 of drop receiving cylinder 214 .
- Cylinder cover 306 may be configured to close a top surface of drop receiving cylinder 214 and prevent or limit air flow out of drop receiving cylinder 214 , except through escape ports 216 .
- Shield/fence 308 may include a substantially disc-shaped outer section 340 and an inner opening 342 sized to enable reception of an inner portion of drop receiving cylinder 214 .
- shield/fence 308 may include ventilation holes or other openings (described below in connection with FIG. 5B ) and may be configured to prevent the received drop from inhibiting air flow to escape ports 216 .
- shield/fence 308 may be configured to surround an inner portion of drop receiving cylinder 214 on top of escape ports 216 , thereby providing a receiving surface for drop 202 that does not prevent air from reaching escape ports 216 .
- Drop receiving cylinder 214 may include outer surface 338 having a substantially cylindrical configuration. An open end of outer surface 338 may include a clip or engagement mechanism 344 for removeably engaging lip 336 of cylinder cover 306 . Drop receiving cylinder 214 may include an inner portion 346 having a raised center section. Further, as discussed above, drop receiving cylinder 214 may include a number of air escape ports 216 (ports 216 - 1 and 216 - 3 are shown in FIG. 3A ).
- Back plate assembly 310 may include a substantially square plate-like outer surface 350 having a number of raised clip elements clip elements protruding therefrom.
- Back plate assembly 310 may include a raised element 352 for housing fiber/air flow receiving channel 212 and connecting to duct entry port 208 .
- Back plate assembly 310 may further include a raised cylindrical portion 354 configured to receive fiber/air flow receiving channel 212 and may include outlet 218 described above in relation to FIG. 2 .
- Raised cylindrical portion 354 may include a notch 356 configured to receive and center drop receiving cylinder 214 .
- raised cylindrical portion 354 may also include a pin receiving cavity 358 for receiving an end of pin 304 .
- FIG. 3B is a schematic diagram illustrating an exemplary implementation of an assembled drop receiving device 200 taken along the line “A-A” of FIG. 1 .
- FIG. 4A is a schematic diagram illustrating an exemplary implementation of back plate assembly 310 of FIG. 3A .
- FIG. 4B is a schematic diagram illustrating an exemplary implementation of back plate assembly 310 of FIG. 3A taken along the line “B-B” of FIG. 4A .
- FIG. 4C is a schematic diagram illustrating an exemplary implementation of back plate assembly 310 of FIG. 3A taken along the line “C-C” of FIG. 4B .
- raised element 352 may extend radially from raised cylindrical portion 354 to duct entry port 208 .
- FIG. 5A is a schematic diagram illustrating an exemplary implementation of shield 308 of FIG. 3A .
- FIG. 5B is a schematic diagram illustrating an exemplary implementation of shield 308 of FIG. 3A taken along the line “D-D” of FIG. 5A .
- disc-shaped outer section 340 may include a plurality of ventilation holes 502 for facilitating release of air from drop receiving cylinder 214 .
- FIG. 6A is a schematic diagram illustrating an exemplary implementation of drop receiving cylinder 214 of FIG. 3A .
- FIG. 6B is a schematic diagram illustrating an exemplary implementation of drop receiving cylinder 214 of FIG. 3A taken along the line “E-E” of FIG. 6A .
- drop receiving cylinder 214 may include clips or other engagement mechanisms 344 located at opposite sections of outer surface 338 .
- FIG. 7A is a schematic diagram illustrating an exemplary implementation of cylinder cover 306 of FIG. 3A .
- FIG. 7B is a schematic diagram illustrating an exemplary implementation of cylinder cover 306 of FIG. 3A taken along the line “F-F” of FIG. 7A .
- FIG. 8A is a schematic diagram illustrating an exemplary implementation of outer housing 206 of FIGS. 2 and 3A .
- FIG. 8B is a schematic diagram illustrating an exemplary implementation of outer housing 206 of FIG. 8A taken along the line “G-G” of FIG. 8A .
- FIG. 8C is a schematic diagram illustrating an exemplary implementation of outer housing 206 of FIG. 8A taken along the line “H-H” of FIG. 8A .
- outer housing 206 may include openings 316 configured to receive clip elements 318 of back plate assembly 310 .
- outer housing 206 may include opening 810 configured to receive raised element 352 of back plate assembly 310 .
- FIG. 9 is a flow diagram illustrating an exemplary process 900 for receiving a fiber drop in the application environment of FIG. 1 using the drop receiving device of FIGS. 2-8C .
- the process may begin with installation of a drop conduit or duct within a structure being serviced (block 910 ).
- conduit 125 may be installed in building 110 and unit 115 , with the conduit terminating at a drop terminating location.
- Drop receiving device 200 may be installed at the drop terminating location (e.g., a utility room/closet in unit 115 of multi-unit building 110 ) (block 920 ). As shown above in FIG. 2 , drop receiving device 200 may include duct entry port 208 for receiving conduit 125 .
- Drop installation may commence upon receipt of a length of drop and a flow of pressurized air from conduit 125 into fiber/air flow receiving channel 212 (block 930 ).
- the air flow and inserted drop may leave fiber/air flow receiving channel 212 through outlet 218 , and enter drop receiving cylinder 214 (block 940 ).
- Air flow entering drop receiving cylinder 214 may exit drop receiving cylinder 214 via escape ports 216 (block 950 ).
- non-dependent blocks may represent blocks that can be performed in parallel.
- blocks 900 and 920 may be performed in parallel or in any suitable order.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/186,869 US7574094B2 (en) | 2007-12-28 | 2008-08-06 | Fiber drop receiving device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/966,732 US7447413B1 (en) | 2007-12-28 | 2007-12-28 | Fiber drop receiving device |
US12/186,869 US7574094B2 (en) | 2007-12-28 | 2008-08-06 | Fiber drop receiving device |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/966,732 Continuation US7447413B1 (en) | 2007-12-28 | 2007-12-28 | Fiber drop receiving device |
Publications (2)
Publication Number | Publication Date |
---|---|
US20090169167A1 US20090169167A1 (en) | 2009-07-02 |
US7574094B2 true US7574094B2 (en) | 2009-08-11 |
Family
ID=39916551
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/966,732 Expired - Fee Related US7447413B1 (en) | 2007-12-28 | 2007-12-28 | Fiber drop receiving device |
US12/186,869 Expired - Fee Related US7574094B2 (en) | 2007-12-28 | 2008-08-06 | Fiber drop receiving device |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/966,732 Expired - Fee Related US7447413B1 (en) | 2007-12-28 | 2007-12-28 | Fiber drop receiving device |
Country Status (1)
Country | Link |
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US (2) | US7447413B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7447413B1 (en) * | 2007-12-28 | 2008-11-04 | Verizon Services Corp. | Fiber drop receiving device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5703990A (en) * | 1996-03-14 | 1997-12-30 | Lucent Technologies Inc. | Apparatus for housing a linearized optical fiber amplifier |
US6377735B1 (en) * | 1999-09-21 | 2002-04-23 | Tycom (Us) Inc. | Fiber retaining system |
US7447413B1 (en) | 2007-12-28 | 2008-11-04 | Verizon Services Corp. | Fiber drop receiving device |
-
2007
- 2007-12-28 US US11/966,732 patent/US7447413B1/en not_active Expired - Fee Related
-
2008
- 2008-08-06 US US12/186,869 patent/US7574094B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5703990A (en) * | 1996-03-14 | 1997-12-30 | Lucent Technologies Inc. | Apparatus for housing a linearized optical fiber amplifier |
US6377735B1 (en) * | 1999-09-21 | 2002-04-23 | Tycom (Us) Inc. | Fiber retaining system |
US7447413B1 (en) | 2007-12-28 | 2008-11-04 | Verizon Services Corp. | Fiber drop receiving device |
Also Published As
Publication number | Publication date |
---|---|
US20090169167A1 (en) | 2009-07-02 |
US7447413B1 (en) | 2008-11-04 |
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STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
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AS | Assignment |
Owner name: VERIZON PATENT AND LICENSING INC., NEW JERSEY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VERIZON SERVICES CORP.;REEL/FRAME:023235/0251 Effective date: 20090301 Owner name: VERIZON PATENT AND LICENSING INC.,NEW JERSEY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VERIZON SERVICES CORP.;REEL/FRAME:023235/0251 Effective date: 20090301 |
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